It appears to be a coin or token commemorating the wedding (hochzeit) of a German King to his new Queen. I can read "MECKLENB" for Mecklenburg. Need a better pic that can be blown up by clicking on the pic twice after opening it to be able to possibly read the other words.
Edited to add: After squinting to read more of the words, I believe it is to commemorate the wedding of Helene Luise Elisabeth, daughter of the Grand Duke and Princess of Mecklenburg-Schwerin to Prince Ferdinand Philippe of Orléans, the son of Louis Philippe d'Orléans, Duke of Orléans (the future King Louis Philippe I) and Maria Amalia of Naples and Sicily.